Road shoulder maintainer



May 31, 1932. CALLAWAY 1,8fi0,922

ROAD SHOULDER MAINTAINER Filed Aug. 15, 1931 3 Sheets-Shet 1 Invenfor Jv/z z'kazaifi ZZzZiaa-Ta w/ a flllorney May 31, 1932. CALLAW'AY 1,869,922

ROAD SHOULDER MAINTAINER Filed Aug. 15, 1931 3 Sheets-Sheet 2 Inventor M y 1932- A. B. CALLAWAY ROAD SHOULDER MAINTAINER Filed Aug. 15, 1931 3 Sheets-Sheet Inventor 2172 zZaZJZf (272702029 M omey Patented May 31, 1932 UNITED STATES PATENT Mme;

ARCHIBALD B. CALLAWAY, OF-READS'I'OWN, WISCONSIN ROAD sHoULnERMAINTAmER Application filed August 13, 4 1931. Serial no. 556,906.

The present invention relates to a machine for maintaining road shoulders and has for itsprime objectto provide a machine to remove banks along guard rails or posts 1 along the road which are'formed' by the wearing away of the rod, particularly gravel, dirt and other similar roads.

Another important object of the invention resides in the provision of an apparatus of this nature in the form of an attachment for a tractor, the apparatus being exceedinglyv simple in its construction, easy to manipulate and adjust, inexpensive to manufacture, thoroughly efficient and reliable in useand operation, and otherwise welladapted to the purpose for which it is designed.

With the above and numerous other ob Figure 3 is a vertical transverse section taken substantially on-the line 3-3 of Figure 2.

Figure 4 is a detail section taken substantially on the line 4- of Figure 2, and

Figure 5 is a detail section taken substantially on the line 5-5 of Figure 1. y

Figure 6 is a detail view of one of the chain links.

Referring to the drawings in detail it will be seen that the letter T denotes generally a tractor including a platform 5 having a depending flange 6 at the rear edge thereof. A pair of spaced angle brackets 7 are mounted on the flange 6 one above the other toreceive a pin 8 through openings therein. A

pair of upright bars 9 are secured as at 10 to the flange 6 and converge upwardly toward each other and incline upwardly and apparent as the description proceeds.

rearwardly and havea cross member 11 on theupperend thereof. j r

Suitable braces 12 are conne'cted'to upper intermediate portions ofthe upright bars 9 and to the platform 5. A cross bar 1 f is dis 55 posed between intermediate portions of the upright'bars 5. A curved elongated guide plate 16 is secured to the'center o'f the cross bar 14 and curved upwardly and re'arward- 1y and isformed witha forward extensionat 00 its upper end asindicated at 17 rivetedlas at 18 tothe cross member 11. The cross Inehlher 11 on its forward end has a dependingflange plate 19jthr0ugh which is journalled a shaft 20 with the wheel 21. on the r ar end": 66 thereof and the forward end thereof being a threaded. This shaft extends throughan opening in the guide plate-l6. A U-shaped member 23 straddlesthe guide 16 and the 7 cross portion thereof has ail-opening through which the shaft 20 extends. On the ends of the U-shaped member '23 are outwardly dia V rected cars 24 riveted to-anangular me1nbera 25 through which the threaded portion of the shaftexte'nds and is threadedin a ,nut'26 5 V i fixed to the angle cross member 25. This cross member 25 isformed with slots'27of a well known type having forward ends larger than the rear ends so that links of, 1 chains 28 may be engaged therewith for proper adjustment as will be more clearly.

A plate 28' is formed with an opening 129 through which the pin 8 extends. The plate is looselymounted Withrespect to the pin. as

Angle bars 30 have forward portions secured I together in abutting relation by suitable means 31 and the rear end portions diverge rearwardly from each other as at 32 and are secured to a crossangle iron 33 bolted as at 34 on a mold board 35. These bolts 34 also hold on the mold board a blade 36.- The adjacent edges of the blade and the mold board are beveled as indicated to advantage in Figl ure 5. The end link of each chain 28 is de- 90' noted by the numeral 40 and is shown in de tail in Figure 5. This link islarge at one end and rather narrow at the other end so that insteadof the end of the chain dangling, l

' it may be held as shown to advantagein Fig- I claim as new is: Y

ure These chains 28 are secured as'at 41 to the mold board and braces 42 extend from the means 42 to the portions 32 of the angle bars 30.

'By turning the wheel 21 it will be readily appreciated that the mold board may be lifted and lowered as desired. In using this apparatus on the rear of the tractor, the tractor is run back and'forth across the road and the shoulders are shaved off as to provide proper drainage for the; gravel; dirtyor' like.

road. 7 I

' It is thought that the construction, operation, utility andadva nta-ges of this inven tion will now be quite apparent" to those skilled in thisartwithout 'a more detaileddescription thereof.

The present embodiment of the'invention has been described in considerable detail merely for the purposes of exemplification since in actual practice it attainsthe features, of advantage enumerated as desirablein-the statement ofthe' invention and the above descri tion. I f

' aving thus described my invention, what Incombination, the rear end of a tractor and'an apparatus including a pin mounted on the rear end, a plateloosely mounted; on the pin, bars se'curedto the plate andextending rearwardly therefrom i'n abutment and merg ing into rear extensionsdiverging rearward? ly from each other,ra'm:old board on the ends of'tlie rear extensions and means for raising and lowering the mold board comprising uprights from the rear end of the tractor, a shaft, means for rotatably mounting the shaft between the upper ends of the uprights, a member threaded on the shaft, and chains connecting the member with the mold board;

" In testimon whereofl afli'x my signature.

ABC ,IBALD B. CALLAWAY;- 

